Salvia superba Queen of the Blues
Salvia superba Queen of the Blues
Salvia superba Queen of the Blues
Salvia superba Queen of the Blues
Salvia superba Queen of the Blues
Salvia x superba Reine Bleue
Wood Sage, Forest Sage
Planted upon arrival, a lovely little young plant that's just waiting to grow bigger.
michèle C, 19/11/2025
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Description
The Salvia x superba 'Queen of Blues', also known as Salvia 'Blaukönigin', is a very beautiful perennial hybrid sage, with the appearance of a charming and very floriferous weed. It produces superb clusters of flowers in a deep blue-violet colour, in airy and tight spikes, from May to August. Robust and cold-resistant, it has a rather erect habit and tall floral stems that can reach a height of 60 cm (24in), emerging from a densely leafy clump. It is a very easy plant to grow, ideal for borders or mass plantings, in full sun or partial shade.
The Salvia superba is a horticultural hybrid obtained by cross-breeding Salvia x sylvestris, a hybrid between Salvia nemorosa and Salvia pratensis, and Salvia villicaulis, a rare European species. These plants belong to the lamiaceae family and have in common the ability to tolerate cold, sun, and drought-prone soils. The 'Queen of Blues' variety stands out for its vigor and magnificent flowering. It has a branching and erect habit and semi-evergreen foliage. The plant forms clumps that can cover 1m (3ft) in diameter. It produces multiflorous and compact inflorescences in spring, reaching a height of 55 or 60 cm (22 or 24in), with flowers measuring 0.5 to 1 cm (0in) in length, violet to purple, with purple or violet bracts. The flowers bloom from May and continue without interruption until mid-summer, and they are highly prized by butterflies and bees. The leaves are deciduous, 5 to 10 cm (2 to 4in) long, ovate to oblong, rough, with crenate edges, and form a beautiful foliage.
The 'Queen of Blues' wood sage is vigorous enough to outcompete weeds. It excels on slopes, contributing to their stability with its deep anchoring roots, which allow it to draw moisture even during heatwaves. In this regard, it is perfect for maintaining the soil in rockeries or banks near water sources. It is a very resistant plant; it can tolerate periods of drought once established, although the beauty of its foliage may suffer, and it can thrive in Spartan growing conditions. This plant is tolerant of limestone, even grows on chalky hillsides, and withstands harsh winters without weakening. In borders, it can be paired with clary sage, common sage, and old-fashioned roses, as well as Nepeta x faassenii and lychnis coronaria.
With over 900 species of annuals, perennials, and soft-wooded shrubs distributed worldwide, except in very cold regions and the tropical forest, the Salvia genus is the richest in the lamiaceae family.
Salvia superba Queen of the Blues in pictures
Flowering
Foliage
Plant habit
Botanical data
Salvia
x superba
Reine Bleue
Lamiaceae
Wood Sage, Forest Sage
Cultivar or hybrid
Planting and care
Install the 'Queen of Blues' sage in ordinary soil, even poor and rather chalky, but above all well-draining. This plant tolerates some drought once well established. It does not appreciate heavy and waterlogged soils in winter, which can harm its hardiness. You will plant it in a sunny or semi-shady location. It is an easy plant, very flowering. Fertilize in spring, and then in April, cut all the branches in half. After flowering, cut the faded flower stalks to stimulate and prolong flowering. To preserve the vitality of the sage, divide the plant after 3 years. Plant in well-worked soil. In order to improve slightly poor soil, mix in some horticultural compost.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
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In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.